# Senior IT Infrastructure Engineer

**Company:** [Nasuni](https://hotfix.jobs/companies/nasuni)
**Location:** Warsaw, Poland, Mazowieckie, Poland, London, United Kingdom
**Role:** DevOps / SRE
**Experience:** 6+ years
**Skills:** AWS, Microsoft Azure, Terraform, CloudFormation, PowerShell, Workato, IAM, RBAC, Okta, Microsoft Entra Id, SSO, MFA, Cloud Security, Finops, Disaster Recovery
**Posted:** 2026-07-31

> Senior individual contributor responsible for designing, securing, automating, and optimizing AWS and Azure infrastructure in a hybrid environment. The role requires 6+ years of infrastructure experience, strong IAM and cloud security expertise, infrastructure-as-code skills, and operational leadership.

## Job Description

## Responsibilities

- Design, deploy, and maintain secure, scalable, and high-performing cloud environments across AWS, Azure, and hybrid infrastructure.
- Audit cloud resources and align them with best-practice configurations, tagging standards, access controls, and operational governance.
- Implement and manage IAM policies, role-based access controls, MFA enforcement, and integrations with Okta and Microsoft Entra ID/Azure AD under Security team guidance.
- Automate infrastructure provisioning, configuration, and repeatable workflows using Terraform, CloudFormation, PowerShell, Workato, or similar platforms.
- Monitor and improve cloud availability, performance, security posture, and cost efficiency through dashboards, alerts, tagging discipline, and operational reviews.
- Partner with Security on encryption, key management, network segmentation, SOC 2, ISO 27001, Zero Trust, and related cloud security initiatives.
- Collaborate with Engineering and IT Operations on migrations, SaaS/PaaS optimization, disaster recovery, and business continuity planning.
- Participate in incident response, root cause analysis, and remediation for cloud-related issues.
- Maintain architecture diagrams, runbooks, SOPs, and self-service knowledge resources.
- Use AI-enabled tools responsibly for analysis, documentation, log review, infrastructure-as-code drafting, and workflow improvement while validating outputs.
- Mentor junior engineers and help improve cloud automation, governance, and operational practices.

## Expected Outcomes

- Improved cloud governance, tagging accuracy, access control hygiene, and resource visibility.
- Reduced manual operational work through automation and reusable infrastructure patterns.
- Stronger security execution across identity, encryption, segmentation, and compliance-aligned controls.
- Better cloud spend visibility and actionable optimization recommendations.
- More reliable cloud operations through monitoring, documentation, incident response, and root-cause-analysis discipline.

## Required Qualifications

- 6+ years of experience in IT infrastructure, cloud infrastructure, systems engineering, or related technical operations roles.
- 3+ years of hands-on experience administering enterprise AWS and Azure environments.
- Practical experience with IAM, RBAC, networking, storage, compute, monitoring, and cloud security controls.
- Hands-on experience with infrastructure-as-code or automation tools such as Terraform, CloudFormation, PowerShell, Workato, or equivalent.
- Experience integrating or administering Okta, Microsoft Entra ID/Azure AD, SSO, and MFA.
- Strong troubleshooting skills across cloud, identity, networking, and SaaS environments.
- Clear documentation and communication skills for technical and cross-functional audiences.

## Preferred Qualifications

- Experience supporting SOC 2, ISO 27001, Zero Trust, or similar compliance and security frameworks.
- Experience with FinOps practices, tagging policies, cost dashboards, or cloud spend optimization.
- Experience supporting disaster recovery, business continuity, or migration initiatives.
- Experience mentoring junior engineers or serving as a technical escalation point.
- Experience in a high-growth SaaS, private equity-backed, or global technology environment.
- Ability to build reusable automation, governance workflows, and self-service operational resources.
- Demonstrated use of AI-assisted workflows for cloud analysis, documentation, automation review, or operational efficiency with strong validation practices.

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